Back out to 400 yds after adjusting my sight picture

Earlier this week, I went to my nearby 100 yd public range to set my POA at 6:00, at 30 meters, with my iron sights. Today I went to the gun club to see how I could do at 100, 200, 300, and 400 yds. Everything was shot off of a table using my ammo box/airsoft bb sock gun rest.


Here’s the rifle:


Here’s the ammunition I started with:


I put one 17†target on the #15 target backer at 100, 200, 300, and 400 yds.


I tried to touch the top edge of the front post to the bottom of the orange circle, using the #2 rear sight aperture.


Next I tried to touch the top edge of the front post to the bottom of the target, using the #2 rear aperture again. At this distance, the target is about the width of the front post.


Then I fired five rounds each at the targets at 300 and 400 yds. However, I forgot to change the rear sight aperture, so none of the shots hit the targets. D’oh! So, I went back to the front target again, using the same sight picture and aperture as before.


And then, a second set of five rounds at 200 yds (#2 aperture).


This time I remembered to dial in the #3 rear sight aperture. At this distance the target is a little smaller than the width of the front post (five rounds).


I’m not sure how I shot my best 400 yd group on this attempt. I could barely see the black target on the light brown backer. And, at that distance, the front post can cover the entire backer board. (#4 aperture)


I only had 10 rounds of German surplus ammunition left, so I started at 400 yds on this turn. I also stuck the target on a white background to try and see it better. It didn’t seem to help. (five shots)


And then, the last five rounds of German surplus at 300 yds.